Ubigi earns 4.3 / 5 in our 2026 review. It's the best travel eSIM for value-focused travelers who want carrier-grade reliability without paying premium prices. Backed by Transatel and its parent NTT, Ubigi runs as a native carrier eSIM (not a reseller), covers 200+ countries, includes 5G at no extra cost in 60+ destinations, and allows free hotspot on every single plan. It is one of the very few travel eSIMs that also works natively on Windows laptops. Inconsistent customer support and uneven rural coverage outside its NTT-strong markets keep it from a perfect score. Pick Airalo if you want the widest country list and the most polished app, or Holafly if you specifically want flat-rate unlimited data on a single phone.
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Company Overview
Ubigi stands apart from most travel eSIM brands because it is run by an actual carrier. The service is operated by Transatel, a French connectivity company that NTT, the Japanese telecom giant, acquired in 2019. That ownership matters: while many travel eSIM providers are resellers buying wholesale capacity and wrapping it in an app, Ubigi operates as a native carrier-grade eSIM with its own mobile core network. There is no dependency on a third party's platform, which translates into reliable activation and stable connections.
Ubigi began life serving connected cars and IoT devices (it still powers in-vehicle connectivity for several automakers, including Jaguar Land Rover), then expanded into consumer travel eSIMs and laptop data. Today it covers 200+ countries and regions and supports phones, tablets, and Windows laptops. Its NTT lineage gives it a genuinely standout product in Japan, where it rides the NTT Docomo network deep into rural areas, subways, and mountainous regions where secondary networks often drop signal.
Ubigi at a Glance
Carrier-grade travel eSIM backed by NTT
Plans and Pricing
Ubigi offers an unusually broad mix of plan types: capped local plans, regional bundles, a global plan, pay-as-you-go data, and unlimited daily or monthly tiers in select markets. For most travelers the standout is short-trip value. Ubigi routinely prices 20 to 40 percent below Airalo and Holafly for equivalent data in Europe and parts of Asia. Here are representative 2026 prices in USD:
Popular Local and Regional Plans
| Destination | Data | Validity | Price | Per GB |
|---|---|---|---|---|
| Europe (regional) | 3 GB | 30 days | $8 | $2.67 |
| Europe (regional) | 10 GB | 30 days | $17 | $1.70 |
| USA | 3 GB | 30 days | $10 | $3.33 |
| Japan | 1 GB | 3 days | $3.50 | $3.50 |
| Japan | 10 GB | 30 days | $19 | $1.90 |
| Thailand | 5 GB | 30 days | $13 | $2.60 |
| Asia (regional) | 5 GB | 30 days | $15 | $3.00 |
Unlimited and Pay-As-You-Go Options
Where Ubigi gets interesting is its unlimited tiers. Unlimited data plans are available in more than 50 countries, including France, Spain, the USA, Japan, Italy, Germany, the UK, Turkey, South Korea, and Thailand, with 5G included at no extra charge. A USA unlimited monthly plan runs around $36, and Japan offers unlimited tiers up to about $65 for 30 days. Ubigi also keeps a pay-as-you-go (PAYG) wallet model alive: you top up a balance and draw from it across destinations, which suits frequent flyers who do not want to buy a fresh plan for every trip.
How Ubigi Compares on Price
Ubigi's Europe 10GB plan at roughly $17 undercuts Airalo (around $37) and Holafly's flat unlimited model on short trips. Against Nomad, the budget leader, Ubigi is competitive and adds 5G plus a carrier-grade network. For a one-week Europe trip with hotspot needs, Ubigi is one of the cheapest credible options.
Coverage and 5G
Ubigi covers 200+ countries and regions, matching Airalo and exceeding Holafly (60+) and Nomad (100+). It offers local plans, regional bundles for Europe, Asia, the Americas, and other zones, plus a global plan for multi-continent itineraries. 5G is included free wherever a partner network supports it, currently in 60+ destinations, which is a meaningful edge over providers that charge extra or cap you at 4G.
Network quality is genuinely strong in Ubigi's home markets. Through NTT Docomo in Japan, real-world speeds in Tokyo and Osaka routinely hit 40 to 80 Mbps, and coverage reaches subways and rural prefectures that trip up other eSIMs. Europe and the USA are also solid on tier-one partner networks. The weak spots are off-the-beaten-path destinations, where rural coverage can be inconsistent depending on which local partner Ubigi uses.
Check Rural Coverage Before Buying
Ubigi shines on major networks (especially NTT Docomo in Japan), but rural performance outside its strongest markets can vary. If your trip runs deep into the countryside in a less common destination, confirm the partner network on Ubigi's coverage page first.
App, Devices, and Support
The Ubigi app (iOS and Android) handles browsing, purchase, QR-free installation, data tracking, and top-ups. It is functional and reliable rather than flashy. The genuinely differentiating feature is device support: Ubigi is built into the native Mobile Plans app on Windows 10 and Windows 11, so an eSIM-capable laptop can download a free Ubigi profile and buy data directly, with no phone involved. Very few travel eSIMs offer this, and it is a real selling point for remote workers and anyone who wants their laptop online independently of their phone.
Ubigi App and Device Features
Carrier-grade across phones and laptops
Customer support is Ubigi's weakest area. There is no live chat. You get email support and a help center, and response times can be slow and inconsistent. For most travelers this is a non-issue, since carrier-grade activation rarely needs hand-holding, but if you hit a problem abroad you will not get the near-instant help that Holafly's 24/7 chat provides. Note that Ubigi does not run a broad free-trial data promotion the way some competitors do; the free element is the laptop eSIM profile, which you still pay to load with data.
Overall Pros and Cons
Strengths
Weaknesses
Who Is Ubigi Best For?
Ideal Ubigi Users
Value-focused travelers: If you want carrier reliability and 5G without Airalo or Holafly prices, Ubigi is one of the best deals for short trips in Europe and Asia.
Japan-bound travelers: The NTT Docomo network makes Ubigi a top pick for anyone visiting Japan, including rural and mountain regions.
Laptop and remote workers: Native Windows support means your laptop gets its own data plan, no phone tethering required.
Hotspot sharers: Free tethering on every plan lets couples and small groups share one Ubigi plan across devices.
Ubigi Might Not Be Right If...
You need instant support. With no live chat, Ubigi is not ideal if you want hand-holding while abroad. Holafly is stronger here.
You want truly unlimited data everywhere. Ubigi's unlimited tiers cover 50+ countries, but Holafly's flat-rate unlimited model spans its whole footprint.
You travel to remote or unusual destinations. Rural coverage can vary; Airalo may be a safer bet for off-grid itineraries.
Final Verdict
Ubigi is one of the most underrated travel eSIMs on the market. The carrier-grade foundation from Transatel and NTT gives it reliability that resellers cannot always match, and the feature set (free hotspot, free 5G, unlimited tiers, PAYG, and native laptop support) is broader than almost any competitor at the price. For short trips in Europe and Asia, and especially for anyone visiting Japan, it is hard to beat on value.
The trade-offs are real but narrow. Customer support is the clear weak point, and rural coverage outside Ubigi's strongest markets is hit or miss. If you can live without 24/7 chat and you are traveling to well-covered destinations, Ubigi delivers premium connectivity at a budget-friendly price, which is exactly why it earns a place alongside Airalo and Holafly in our top tier.
Our Rating: 4.3 / 5
Ubigi earns strong marks for carrier-grade reliability, free hotspot, 5G, laptop support, and value. The email-only support and uneven rural coverage keep it from the top spot. Best for value-focused travelers and anyone heading to Japan.
Frequently Asked Questions
Who owns Ubigi?
Ubigi is operated by Transatel, a connectivity company owned by NTT, the Japanese telecom giant. That carrier heritage is why Ubigi runs as a native carrier-grade eSIM rather than a reseller, and why its Japan coverage on the NTT Docomo network is so strong.
Does Ubigi support hotspot and tethering?
Yes. Ubigi allows tethering and hotspot on every plan at no extra charge, so you can share your data with a laptop, tablet, or a travel companion's phone. This is a clear advantage over Holafly, which restricts tethering on many plans.
Does Ubigi offer 5G and unlimited data?
Yes. Ubigi includes 5G at no extra cost where networks are available, in 60+ destinations, and offers unlimited data plans in more than 50 countries including France, Spain, the USA, Japan, Italy, Germany, and the UK. Pay-as-you-go and capped data plans are also available.
Can I use Ubigi on a Windows laptop?
Yes, and this is one of Ubigi's standout features. Ubigi is built into the native Mobile Plans app on Windows 10 and Windows 11, so an eSIM-capable laptop can download a Ubigi profile and buy data directly, no phone required. Few travel eSIMs support this.
How does Ubigi compare to Airalo and Holafly?
Ubigi is usually cheaper than Airalo and Holafly for short trips in Europe and Asia, includes free hotspot like Airalo, and adds 5G and laptop support. Airalo covers more countries with a more polished app and support; Holafly is better only if you specifically want flat-rate unlimited data on one phone.